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Popular >

derivative of (x^2)/(3x+7)

Solution

derivative of

\frac{x ^{2}}{3 x + 7}

Solution

\frac{3 x ^{2} + 14 x}{( 3 x + 7 ) ^{2}}

Solution steps

\frac{d}{d x} (\frac{x ^{2}}{3 x + 7})

Apply the Quotient Rule:

(\frac{f}{g})^{'} = \frac{f ^{'} \cdot g - g ^{'} \cdot f}{g ^{2}}

= \frac{\frac{d}{d x} ( x ^{2} ) ( 3 x + 7 ) - \frac{d}{d x} ( 3 x + 7 ) x ^{2}}{( 3 x + 7 ) ^{2}}

\frac{d}{d x} (x^{2}) = 2 x

\frac{d}{d x} (3 x + 7) = 3

= \frac{2 x ( 3 x + 7 ) - 3 x ^{2}}{( 3 x + 7 ) ^{2}}

Expand

2 x (3 x + 7) - 3 x^{2} : 3 x^{2} + 14 x

= \frac{3 x ^{2} + 14 x}{( 3 x + 7 ) ^{2}}

Popular Examples

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θ \to 0 lim (2 sec (θ))

Frequently Asked Questions (FAQ)

What is the derivative of (x^2)/(3x+7) ?
The derivative of (x^2)/(3x+7) is (3x^2+14x)/((3x+7)^2)
What is the first derivative of (x^2)/(3x+7) ?
The first derivative of (x^2)/(3x+7) is (3x^2+14x)/((3x+7)^2)